Neighbouring streams

Every Clean Water Hub site within 30 km of the chapter with a long enough record, most of them Fairfax County streams across the Potomac: are they changing the same way?

Map of sites around the creek1652 Clean Water Hub sites with surveys lie within 30 km of the chapter; the long-record ones cluster to the southwest, across the Potomac. Context Streams across the Potomac are mostly improving11 of 31 long-record sites within 30 km show improving scores, the opposite of Site 1's direction. Good news Sites nearby25 other Hub sites within 10 km have usable surveys, mostly salt and nitrate readings. Context